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Implement for-await-of statement. (#3946)

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JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2020-06-30 11:21:50 +02:00
committed by GitHub
parent 0b404ea893
commit 5535ea88ac
20 changed files with 729 additions and 199 deletions
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jerry-core/vm/vm-stack.c
+17 -10
View File
@@ -28,10 +28,13 @@
*/
JERRY_STATIC_ASSERT (PARSER_WITH_CONTEXT_STACK_ALLOCATION == PARSER_BLOCK_CONTEXT_STACK_ALLOCATION,
parser_with_context_stack_allocation_must_be_equal_to_parser_block_context_stack_allocation);
with_context_stack_allocation_must_be_equal_to_block_context_stack_allocation);
JERRY_STATIC_ASSERT (PARSER_WITH_CONTEXT_STACK_ALLOCATION == PARSER_TRY_CONTEXT_STACK_ALLOCATION,
parser_with_context_stack_allocation_must_be_equal_to_parser_block_context_stack_allocation);
with_context_stack_allocation_must_be_equal_to_block_context_stack_allocation);
JERRY_STATIC_ASSERT (PARSER_FOR_OF_CONTEXT_STACK_ALLOCATION == PARSER_FOR_AWAIT_OF_CONTEXT_STACK_ALLOCATION,
for_of_context_stack_allocation_must_be_equal_to_for_await_of_context_stack_allocation);
/**
* Abort (finalize) the current stack context, and remove it.
@@ -79,6 +82,7 @@ vm_stack_context_abort (vm_frame_ctx_t *frame_ctx_p, /**< frame context */
}
#if ENABLED (JERRY_ESNEXT)
case VM_CONTEXT_FOR_OF:
case VM_CONTEXT_FOR_AWAIT_OF:
{
ecma_value_t iterator = vm_stack_top_p[-3];
ecma_free_value (vm_stack_top_p[-2]);
@@ -313,7 +317,7 @@ vm_stack_find_finally (vm_frame_ctx_t *frame_ctx_p, /**< frame context */
#if ENABLED (JERRY_ESNEXT)
/**
* Get the offsets of ecma values from the specified item of a context.
* Get the offsets of ecma values corresponding to the passed context.
*
* @return array of offsets, last item represents the size of the context item
*/
@@ -325,7 +329,7 @@ vm_get_context_value_offsets (ecma_value_t *context_item_p) /**< any item of a c
case VM_CONTEXT_FINALLY_THROW:
case VM_CONTEXT_FINALLY_RETURN:
{
return (2 << (VM_CONTEXT_OFFSET_SHIFT)) | PARSER_FINALLY_CONTEXT_STACK_ALLOCATION;
return (PARSER_FINALLY_CONTEXT_STACK_ALLOCATION << VM_CONTEXT_OFFSET_SHIFT) | 2;
}
case VM_CONTEXT_FINALLY_JUMP:
{
@@ -338,16 +342,19 @@ vm_get_context_value_offsets (ecma_value_t *context_item_p) /**< any item of a c
{
return PARSER_WITH_CONTEXT_STACK_ALLOCATION;
}
case VM_CONTEXT_FOR_OF:
case VM_CONTEXT_FOR_IN:
{
return ((4 << (VM_CONTEXT_OFFSET_SHIFT * 3))
| (3 << (VM_CONTEXT_OFFSET_SHIFT * 2))
| (2 << (VM_CONTEXT_OFFSET_SHIFT))
| PARSER_FOR_OF_CONTEXT_STACK_ALLOCATION);
return (PARSER_FOR_IN_CONTEXT_STACK_ALLOCATION << VM_CONTEXT_OFFSET_SHIFT) | 4;
}
default:
{
return (4 << (VM_CONTEXT_OFFSET_SHIFT)) | PARSER_FOR_IN_CONTEXT_STACK_ALLOCATION;
JERRY_ASSERT (VM_GET_CONTEXT_TYPE (context_item_p[-1]) == VM_CONTEXT_FOR_OF
|| VM_GET_CONTEXT_TYPE (context_item_p[-1]) == VM_CONTEXT_FOR_AWAIT_OF);
return ((PARSER_FOR_OF_CONTEXT_STACK_ALLOCATION << (VM_CONTEXT_OFFSET_SHIFT * 3))
| (4 << (VM_CONTEXT_OFFSET_SHIFT * 2))
| (3 << VM_CONTEXT_OFFSET_SHIFT)
| 2);
}
}
} /* vm_get_context_value_offsets */